七下 周末练习题
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七年级数学下册第4周周测试卷组卷人:家长签名:班级:_________________ 姓名:_________________ 座号:________________一. 选择题(共10小题,答案写在表格内)题号 1 2 3 4 5 6 7 8 9 10答案1.华为麒麟990芯片采用了最新的0.000000007米的工艺制程,数0.000000007 用科学记数法表示为(* )A.7×10﹣9B.7×10﹣4C.0.7×10﹣9D.0.7×10﹣82.a9可以表示为(* )A.9a B.a3•a3C.(a3)2D.a12÷a33.将10.52变形正确的是(* )A.10.52=102+0.52 B.10.52=(10+0.5)(10﹣0.5)C.10.52=102+2×10×0.5+0.52 D.10.52=102+10×0.5+0.524.如图在边长为a的正方形纸片中剪去一个边长为b的小正方形,把余下的部分沿虚线剪开,拼成一个矩形,分别计算这两个图形阴影部分的面积,可以验证的等式是(* )A.(a+b)2=a2+2ab+b2B.(a﹣b)2=a2﹣2ab+b2C.a2+b2=(a+b)(a﹣b)D.a2﹣b2=(a+b)(a﹣b)5.已知:,b=(﹣2)2,c=(π﹣2017)0,则a、b、c的大小关系是(* )A.b<a<c B.b<c<aC.c<b<a D.a<b<c6.计算:(﹣0.25)12×413=( * )A.﹣1 B.1 C.4 D.﹣47.已知x﹣y=7,xy=5,则(x+1)(1﹣y)的值为(* )A.13 B.3 C.﹣11 D.﹣138.若10m=5,10n=3,求102m﹣3n的值(* )A.53B.253C.675 D.25279.下列计算正确的是(* )A.m+m=m2B.(﹣3x)2=6x2C.(m+2n)2=m2+4n2D.(m+3)(m﹣3)=m2﹣910.已知x﹣y=3,xy=2,则x2+y2的值为(* )A.5 B.7 C.11 D.13二.填空题(共5小题)11.计算:.12.已知a m=6,a n=7,则a2m﹣n=.13.已知y2+my+9是完全平方式,则m=.14.如果(x+3)(x﹣4)=x2﹣kx﹣12成立,则k的值为.15.若化简(3x+m)(x﹣2)的结果中不含x的一次项,则m的值为.三.解答题16.计算:(1)(x+3)(2x﹣1)﹣5x2(2)4x(x﹣2y)﹣(2x﹣3y)2(3)先化简,再求值:(a+2b)2﹣(a﹣2b)(﹣a﹣2b)﹣(3a)2,其中a1=-,b12 =.17.(1)计算:(﹣2a2b)2•(ab2)3(2)下面是小静同学进行整式运算的过程,请你认真阅读并完成相应任务.计算:(3x+1)(3x﹣1)﹣(2x﹣1)2解:原式=9x2﹣1﹣(4x2﹣2x+1)…第一步=9x2﹣1﹣4x2+2x﹣1 …第二步=5x2+2x﹣2.…第三步任务一:①以上解题过程中,第一步需要依据和公式进行运算.②第步开始出现错误,这一步出现错误的原因是.任务二:请直接写出本题的正确结果.18.阅读材料后解决问题.小明遇到下面一个问题:计算(2+1)(22+1)(24+1)(28+1).经过观察,小明发现如果将原式进行适当的变形后可以出现特殊的结构,进而可以应用平方差公式解决问题,具体解法如下:(2+1)(22+1)(24+1)(28+1)=(2﹣1)(2+1)(22+1)(24+1)(28+1)=(22﹣1)(22+1)(24+1)(28+1)=(2'﹣1)(24+1)(28+1)=(24﹣1)(28+1)=216﹣1.请你根据小明解决问题的方法,试着解决以下的问题:(1)(2+1)(22+1)(24+1)(28+1)(216+1);(2)(3+1)(32+1)(34+1)(38+1)(316+1).七年级数学下册第4周周测试卷参考答案一.选择题题号 1 2 3 4 5 6 7 8 9 10 答案 A D C D C C B D D A二.填空题11. 012. 36713. ±614. 115. 6三.解答题16. 解:(1)原式=2x2﹣x+6x﹣3﹣5x2=﹣3x2+5x﹣3;(2)原式=4x2﹣8xy﹣(4x2﹣12xy+9y2)=4x2﹣8xy﹣4x2+12xy﹣9y2=4xy﹣9y2;(3)原式=a2+4ab+4b2﹣(4b2﹣a2)﹣9a2=a2+4ab+4b2﹣4b2+a2﹣9a2=﹣7a2+4ab,把a=﹣1,b代入得:﹣7a2+4ab=﹣7×(﹣1)2+4×(﹣1)=﹣7﹣2=﹣9.17. 解:(1)(﹣2a2b)2⋅(ab2)3=4a4b2⋅a3b6=4a7b8(2)任务一:①以上解题过程中,第一步需要依据平方差公式和完全平方公式进行运算.②第一步开始出现错误,这一步出现错误的原因是完全平方公式使用错误.故答案为:平方差公式;完全平方;一;完全平方公式使用错误;任务二:原式=9x2﹣1﹣(4x2﹣4x+1)=9x2﹣1﹣4x2+4x﹣1=5x2+4x﹣2.18. 解:(1)原式=(2﹣1)(2+1)(22+1)(24+1)(28+1)(216+1)=(22﹣1)(22+1)(24+1)(28+1)(216+1)=(24﹣1)(24+1)(28+1)(216+1)=(28﹣1)(28+1)(216+1)=(216﹣1)(216+1)=232﹣1;(2)原式[(3﹣1)(3+1)(32+1)(34+1)(38+1)(316+1)] [(32﹣1)(32+1)(34+1)(38+1)(316+1)][(34﹣1)(34+1)(38+1)(316+1)][(38﹣1)(38+1)(316+1)][(316﹣1)(316+1)].。
Module 3 Making plansUnit 1 What are you going to do at the weekend?一、根据句意及汉语或首字母提示完成单词1. This is a _________ (极好的) way. We can do it like this.2. We are going to see a _________ (电影).3. What are your ________ (计划) for the weekend?4. I’m going to stay at home _________ (独自).5. Don’t be _______ (傻的). Your friends love you very much.6. They are playing football. Let’s j_______ them.7. It’s fine today. Let’s go to the park and have a p_________.8. I help my parents with the h__________ at home every day.9. There is lots of food and drink in the bag. What e_____ would you like?10. N________ knows the answer to this question. It’s much too difficult.二、用所给词的适当形式填空1. There ____________ (be) an English party in our school this Friday evening.2. I ______________ (watch) the football games on TV this Sunday.3. ______ they _____________ (study) Japanese this year?4. What _______ you ____________ (do) tomorrow?5. I _______________ (play) basketball with Jim next Sunday.6. John _____________ (swim) with his friends next Sunday.7. _________ (not be) silly. You can’t do it well alone.8. Would you like _________ (have) a picnic with us?9. ______ you sister ________ (check) her email every day?10. How ______ they ____________ (see) the new film tomorrow evening?三、翻译句子1. --- 你周末经常做什么?--- 我经常帮忙做家务。
七年级数学第九周练习题一、选择题1.下列计算中,运算正确的有几个( )(1) a 5+a 5=a 10 (2) (a +b )3=a 3+b 3 (3) (-a +b )(-a -b )=a 2-b 2 (4) (a -b )3= -(b -a )3A 、0个B 、1个C 、2个D 、3个 2.下列各式的计算中,正确的是( ) A 、(a 5÷a 3)÷a 2=1 B 、(-2a 2)3= -6a 6 C 、-(-a 2)4=a 8 D 、(a 2)3=a 53.计算()()533522aa -÷-的结果是( )A 、—2 B 、2 C 、4 D 、—44.下列各式中,计算错误的是( )A 、(x +1)(x +2)=x 2+3x +2B 、(x -2)(x +3)=x 2+x -6C 、(x +4)(x -2)=x 2+2x -8D 、(x +y -1)(x +y -2)=(x +y )2-3(x +y )-25.若))(3(152n x x mx x ++=-+,则m 的值为 ( )A .5- B .5 C .2- D .2 6.已知(a +b )2=m ,(a —b )2=n ,则ab 等于( )A 、()n m -21B 、()n m --21C 、()n m -41D 、()n m --41 7.若x 2+mx +1是完全平方式,则m =( )。
A2 B-2 C ±2 D ±48.)12)(12(+-+x x 的计算结果是 ( )A.142+x B. 241x - C. 241x + D. 142--x 9.已知2249x mxy y -+是关于,x y 的完全平方式,则m 的值为( )A.6 B.6± C.12 D.12±10如图,在长为a 的正方形中挖掉一个边长为b 图形(阴影部分)的面积,验证了一个等式,则这个等式是( )A .a 2-b 2=(a +b )(a -b )B .(a +b )2=a 2+2ab +b 2C .(a -b )2=a 2-2ab +b 2D .(a +2b )(a -b )=a 2+ab -2b 2 11.如图,一块四边形绿化园地,四角都做有半径为R 的圆形喷水池,则这四个喷水池占去的绿化园地的面积为( ) A 、22R π B 、24R π C 、2R π D 、不能确定12.已知:有理数满足0|4|)4(22=-++n n m ,则22n m 的值为( )A.±1 B.1 C. ±2 D.2 13.若N b a b a ++=-22)32()32(,则N 的代数式是( )A. -24ab B.12ab C.24ab D.-12ab14.下列运算中,正确的是( )(A )()222a b a b +=+ (B )()2222x y x xy y --=++(C )()()2326x x x +-=- (D )()()22a b a b a b --+=-15.如果一个单项式与3ab -的积为234a bc -,则这个单项式为( )A.214a c B.14ac C.294a c D.94ac 16.为了应用平方差公式计算()()c b a c b a -++-,必须先适当变形,下列各变形中,正确的是( )A.()[]()[]b c a b c a +--+B.()[]()[]c b a c b a -++-C.()[]()[]a c b a c b +--+D.()[]()[]c b a c b a -+--17.在①x 2-(-2)2=(x +2)(x -2);②(2a +b )2=4a 2+b 2;③(81×10)0=1;④(m +2)(m -4)=m 2-8中正确的算式( ) A . 1个 B .2个 C .3个 D . 4个18.若,09612=+-x x那么x 2等于 ( )A .2 B .3 C .6 D .-619.如果(x -2)(x +3) = x 2+px +q ,那么p 、q 的值为 ( )A .p =5,q =6B .p =1,q =-6C .p =1,q =6D .p =5,q =-6 20.下列各式中,可以作为因式分解的最后结果的是 ( )A.+(2m -n )][m -(2m -n )] B .a (x 2+y 2)+2axyC .(x 2+y 2+xy )(x 2+y 2-xy )D .a 2(3-a1) 21.)12)(12(+-+x x 的计算结果是 ( )A.142+x B. 241x - C. 241x + D. 142--x 22.已知M =8x 2-y 2+6x -2,N =9x 2+4y +13,则M -N 的值 ( )A .为正数B .为负数C .为非正数D .不能确定23.若二项式4m 2+9加上一个单项式后是一含m 的完全平方式,则这样的单项式的个数有( ) A .4个 B .3个 C .2个 D .1个24.)12()12)(12)(12(242+⋅⋅⋅+++n 的值是 ( )A. 12-nB. 122-nC. 142-nD. 1222-n25.规定一种运算:a *b =ab +a +b ,则a *(-b )+ a *b 计算结果为( )A. 0B. 2aC. 2bD.2a b26.已知7)(2=+b a ,3)(2=-b a ,则22b a +与ab 的值分别是( )A. 4,1 B. 2,23 C.5,1 D. 10,23 27.(-x -y )2 展开后的结果是( ) A .-x 2-2xy -y 2 B .x 2+2xy +y 2 C .-x 2-2xy +y 2 D .x 2-2xy +y 2 二、填空题1.若4a 2+ma +9是完全平方式,则m 的值为 .2.若多项式m xy 12x 92+-是完全平方式,则m = . 3.若x 2+kx +25是一个完全平方式,则k = .4.若m 2+n 2=6n -4m -13,则m 2-n 2 =_________. 5.单项式36a b 与229a b c 的公因式为 .6.若1,2=-=-c a b a ,则=-+--22)()2(a c c b a .7.若3,2a b ab +=-=,则22a b += ,()2a b -= ]8.已知a -a 1 =3,则a 2+a12 的值等于 · 9.如果x 2-kx +9y 2是一个完全平方式,则常数k =________________;10.若a —b =2,3a +2b =3,则3a (a —b )+2b (a —b )= .11.已知2m =x ,43m =y ,用含有字母x 的代数式表示y ,则y =________________; 三、解答题1.计算:①=+-22)2()2(y x y x _______。
人教版七年级下册Unit 2 随堂小测(1163) 1.—d o yo u p la y v o lle yb a ll?—E ve r y S u nd a y a f te r no o n.()A.W ha t timeB.W h enC.W h yD.W he r e2.I u s u a lly g e t u p s ix th e mo r n in g,b u t S u nd a y mo r n in g I g e t u p a little la te.()A.a t; in; onB.a t; in; inC.a t; o n; o nD.in; o n; a t3.To m h as b r e ak fa s t e ve r y mo r n in g.A nd h e a lwa ys e a ts g o od b r ea k f as t.()A.th e; theB./; aC.the; aD./; th e4.Yo u c an e ithe r s ing d an c e wee k end s.()A.a n d; o nB.or; o nC.an d; a tD.o r; in5.D a n u su a lly r id e s a b ik e to wo rk,b u t h e ta ke s a bu s.()A.a lwa ysB.of te n u a llyD.so me time s6.—W ha t's th e E ng lish f o r “9:50”?—It's.()A.n in e f if tyB.f if ty n in eC.ten to n ineD.ten p a s t n in e7.—Do yo u g o to b e d a t n in e,Lin d a?—.I h a ve lo ts of th in g s to d o a t n igh t.()A.Ye s,I d oB.Ye s,s he do e sC.N o,I d on'tD.No,sh e d o es n't8.I n e e d to le a r n En g lis h b ec a us e it c a n h e lp me g e t a go od.()A.wo r kB.ne wsC.jobD.jo b s9.D o ing ex e r c ise is g oo d u s.()A.a tB.onC.inD.fo r10.M y g r a nd f a the r ea ts we ll a nd e ve r y d a y,s o h e is ve r y h e a lth y.()A.wr ite sB.dr a wsC.ex e rc is e sD.s in g s11.I h a ve to ge t up b e ca u s e I mu s t c a tch th e f ir s t bu s to g e t to s ch o o l.()A.e a r ly teC.s lo wlyD.h a r d12.W h en yo u r s iste r h e r h o me wo rk?()A.d o es; d oB.do e s; d oe sC.do; do e sD.d o; d o13.H e re a re yo u r b r o th e r's c lo th e s.Go and h e lp h im q u ickl y.()A.c le an th e r oo mB.ge t d re s s edC.do the d ish e sD.d o h is ho me wo r k14.It's g o o d f o r u s to a wa lk a f te r d inne r.()A.tak eB.ma k eC.p la yD.th in k15.M iss W h ite lik e s sh o pp in g a nd sh e b u ys c lo th e s a nd ba g s.()A.lo t o fB.lo ts o fC.mu c hD.ve r y mu c h16.It's5:30in th e mo r n in g a nd G eo rg e mu s t g e t up.H e ta ke s a sh o we r a ndma k e s21 f o r h is f a mil y.22pe o p le a re in th is f a mil y: G eo rg e, G eo rg e's wif e(妻子) an d 23 th r e e d a ug h te r s.E ve r yo n e h a s th e ir o wn(自己的) e a tin g 24 , so it's a lwa ys25 f o r G eo rg e to p re p a re(准备) f o o d.A f te r b re a k fa st, G eo rg e ne e ds to g o to wo r k.H e wo rk s in a mid d le s ch oo l a nd h e26 h is to r y.H e is a go o d te a ch e r and a ll o f h is s tud en ts27h im.H e go e s home a f te r h e28h is wo r k.He u s ua lly g e ts h o me a t a bo u t 6:00. In th e e ve n ing he h a s f u n29 h is fa mil y.H e u s ua lly p la ys te n n is o r wa tch e s T V with h is d au g h te r s30he g oe s to b ed b e f o re 11:00.(1)A.mo de lsB.br e ak f a s tC.f ru itD.e-ma ils(2)A.T h re eB.Fo u rC.FiveD.S ix(3)A.yo u rB.he rC.the irD.o u r(4)A.timeB.fu nC.f es tiva lD.h a b it(5)A.d iff ic u ltB.he a lth yC.r igh tD.re la x ing(6)A.lo ve sB.tea c he sC.kn o wsD.n e ed s(7)A.likeB.me e tC.jo inD.c a ll(8)A.ma k esB.ha sC.f in ish e sD.p la ys(9)A.o nB.ab ou tC.fo rD.with(10)A.soB.orC.bu tD.a n d17.D a le S mith is th ir ty-two ye a r s o ld.H e wo r k s a t a ra d io s ta tion.H is h o me is in thec e n te r o f th e c ity.He wa lks to h is wo rk p lac e(工作场所) e ve r yd a y.Fr o m M o n da y to Fr id a y, he g e ts up ea r ly, u s u a lly a t s ix o'c lo c k.H e ne e d s to ha ve a qu ic k b re a k fa s t a n d th e n go e s to th e r ad io s ta tio n bef o r e se ve n.P eo p le a lwa ys lis te n to h is p r og r a m a t th a t time.H e wo r k s a t th e s ta tion fo r f ive ye a r s a nd he is n e v e r la te f o r wo rk.D a le S mith like s h is job an d h e a ls o lik es do in g sp o r ts.O n we ek da ys h e u su a lly r u n s f o r a q ua r te r a f te r wo rk.O n we e ke n ds he a lways jo in s h is f r ie n d s to p la y b a s k e tb a ll in th e a f te r n oo n.It's h is f avo r ite s p o r t.So me time s h e g o e s s wimmin g with h is f a mil y.H e d o e s a lo t o f ex e r c ise, s o h e is r e a lly h e a lth y.As f o r fo od, h e like s ve g e tab le s with r ice b e s t.He a ls o lik e s chic k e n an d he s a ys it ta ste s go od.He d o es n't lik e ice-c r e a m b ec a u se it is no t go od fo r h is tee th.A t n igh t D a le o fte n g o e s to b ed e a r ly.H e r e a lly h a s a ha pp y lif e.(1)Ho w o ld is Da le Smith?()A.31.B.32.C.41.D.42.(2)W ha t time d o es D ale's p r o g r a m s ta r t o n we e k da ys?()A.A t 6:00 a.m.B.A t 7:00 a.m.C.A t 6:00 p.m.D.A t 7:00 p.m.(3)W ha t s po r t do e s D ale lik e b e s t?()A.B a sk e tba ll.B.Vo lle yb a ll.C.B a se b a ll.D.S wimmin g.(4)ZK(]A s f o r fo od, Da le lik e s .()①ve g e tab le s②r ice③ic e-c r e a m④c h ick enA.①②③B.②③④C.①③④D.①②④(5)W ha t's th e ma in ide a o f th is p a s s ag e?()A.W ha t D a le d oe s on we e k da ys.B.D a le's h a p p y lif e.C.H o w D a le wo r k s a t th e r ad io s ta tio n.D.Da le's f a vo r ite s p o rts a n d f oo d.18.H e(tak e) a sh owe r in the e ven in g e ve r y d a y.19.M y mo th e r o f ten co o k s b r ea k f as t f o r (we)in th e e a r ly mo r n in g.20.Lin d a b r u s he s h e r(too th) a t s e ve n o'c lo c k.21.I h a ve to e a t a b r ea k fa s t.(q u ick)22.fo o d is go od fo r yo u.(he a lth)23.S o me p eo p le lo s t th e ir b e ca u se o f COV ID-19(新型冠状病毒肺炎).(lif e)24.E ith e r h e o r yo u a b le to g o to the mo vie.(b e)25.Ic e-c r e a m ta s te s goo d, b u t too mu c h is n o t g oo d.(ea t)26.M y g r a nd f a the r o f te n te lls u s (f un)sto r ie s.27.A f te r d inn e r,my f a th e r wa tc he s CCT V n e ws.(u s u a l)28.阅读短文,在没有汉语提示的空格处,根据首字母、音标或语境的提示填入1个适当的单词;在有汉语提示的空格处,填入适当的短语,使短文语意连贯,意思完整。
人教版七年级下册Unit 12 What did you do lastweekend?(911)1.森林家庭野营La s t we e k o u r f a mil y we n t to th e Fo r e s t Fa mil y C a mp.It wa s re a lly g r e a t.It is ap la c e 1 TV s, c omp u te r s o r c a r s, 2 it h a s s o mu ch f un.A s so o n a s(一……就……) we 3 a t th e c a mp, we f ou n d lo ts o f in te r e s tin g th in g s.In th e mo r n ing,we p la ye d with o th e r 4 .T h e y we r e f ro m d iff e r e n t p lac e s.In th ea f te r n oo n, my mo th e r a n d my s is te r 5 str a wb e r r ie s in the f o re s t.M y f a th e r an d I 6in a b e au tif u l la k e.In th e e ve n ing,it wa s th e imp o r ta nt f a mil ytime.We7 o u r e ve n in g s ittin g b y th e la k e a nd ta lk ing.Wh e n we f e lt 8, we we n t to o u r te n t to s lee p.It is o u r f ir s t time to g o to th e c a mp, b u t it 9be the la s t time.We will goth e r e 10 n ex t s umme r.A nd we ho p e yo u r f a mil y c a n jo in u s,too.(1)A.witho u tB.withC.b yD.fo r(2)A.a n dB.soC.bu tD.o r(3)A.p u tB.fo u ndC.wen tD.a r r ive d(4)A.c h ild r enB.tea c he r sC.s tud en tsD.a n ima ls(5)A.b o ug h tB.wa sh edC.p ic k edD.g r e w(6)A.s le p tB.s wa mC.f le wD.mo ve d(7)A.wa tc h edB.ke p tC.s ta r te dD.sp en t(8)A.h a pp yB.tir edC.sc a r edD.b u s y(9)A.c a nB.mu s tC.willD.wo n't(10)A.e ith e rB.a lsoC.ag a inD.o n ly2.词汇积累:f ind v.发现;找到la ke n.湖泊imp o r ta n t a d j.重要的s le e p v.睡觉jo in v.加入从“词汇积累”中选择合适的单词并用其适当的形式填空。
七年级数学周末练习题答案一、选择题1. 下列哪个选项是最小的正整数?A. -1B. 0C. 1D. 2答案:C2. 如果一个数的绝对值是5,那么这个数可能是:A. 5B. -5C. 5或-5D. 以上都不是答案:C3. 计算下列表达式的值:(-2) × (-3):A. 6B. -6C. 3D. -3答案:A4. 一个数的平方是9,这个数可以是:A. 3B. -3C. 3或-3D. 9答案:C5. 以下哪个是偶数?A. 2B. 3C. 5D. 7答案:A二、填空题6. 一个数的相反数是-8,这个数是________。
答案:87. 如果一个数的立方是-27,那么这个数是________。
答案:-38. 一个数的绝对值是其本身,这个数是________。
答案:非负数9. 一个数的平方根是2,这个数是________。
答案:410. 一个数的立方根是-2,这个数是________。
答案:-8三、计算题11. 计算下列各题,并写出计算过程:(1) 5 + (-3) - 2答案:5 - 3 - 2 = 2 - 2 = 0(2) (-1) × 6 ÷ (-2)答案:-1 × 6 ÷ (-2) = -6 ÷ (-2) = 312. 化简下列表达式:(1) |-4| - |-6|答案:|-4| - |-6| = 4 - 6 = -2(2) √(-4)²答案:√(-4)² = √16 = 4四、解答题13. 一个数的3倍加上5等于这个数的5倍减去7,求这个数。
设这个数为x,根据题意可得方程:3x + 5 = 5x - 7解方程得:2x = 12所以 x = 614. 一个班级有40名学生,其中男生人数是女生人数的2倍,求男生和女生各有多少人。
设女生人数为x,则男生人数为2x。
根据题意可得方程:x + 2x = 40解方程得:3x = 40所以x = 40 ÷ 3 ≈ 13.33,但人数必须是整数,所以女生人数为13人,男生人数为40 - 13 = 27人。
七年级下册英语练习试题(精选3篇) 七年级下册英语练习试题(精选3篇)许多人都学过英语,英语是根据分布面积而言最流行的语言,学习英语能够让我们的思索更加深刻,认知更全面。
下面是我为大家整理的七年级下册英语练习试题,期望能帮忙到大家!七年级下册英语练习试题精选篇1书面表达依据下面的提示写一篇短文介绍你上周末的厦门之旅。
1. 上周末和父母一起去了厦门,住在叔叔家。
2. 星期六叔叔带我到厦门高校(university)参观。
3. 星期天参观了鼓浪屿(Gulangyu)和南普陀庙(South Putuo Temple).4. 周末玩的很开心。
七年级下册英语练习试题精选篇2Thereisad_____________“s”intheword“Russia”.Jackhashiso______________carandhome.Alltheboysareonthefootballf_____________afterclass.MrYani______________ustogotohisbirthdayeveryday.Thereusanewwashingm_____________andanewfridgeintheroom.Ihavetwom_______________dollars,Iwanttotravelaroundtheworld.Theygoshopping______________(two)amonth.Septemberisthe______________(nine)monthofamonth.Thisismy_______________(three)timetomeetyouhere.Wouldyoulike______________(go)toSunnyGarden?Thelibraryisthe______________(good)place_____________(read) books.Simonisthefirst______________(get)toschooleveryday.Wehope_______________(visit)yournewhomesoon.Canyouaskhim______________(call)meback? Chinaisoneofthestrongest_______________(country)intheworld.七年级下册英语练习试题精选篇3单项选择( ) 1.----Dad, we can sports in school an hour a day now.---- Really? That sounds great.A. to playB. playsC. playD. playing( ) 2.He goes to school after breakfast every morning.A. the, theB. ,C. the,D. , the( ) 3. We should do more in our lessons.A. exerciseB. exercisesC. exercisingD. exercised( ) 4. The fish .A. taste wellB. tastes wellC. taste goodD. tastes good( ) 5. --- How many teachers are there in your school?--- About four .A. hundredB. hundredsC. hundreds ofD. hundred of( ) 6. She often a train to school, sometimes she goes to school bus.A. takes, takesB. takes, byC. by, takesD. by, by( ) 7. It will you a long time a language well.A. spend, learnB. to spend, to learnC. take, to learnD. take, learn( ) 8. Li Tao is from a small village.A. a 11 years old boyB. a 11-year-old boyC. an 11-year-old boyD. an 11 years old( ) 9.Our teacher is very strict us our homework.A. in, inB. with, withC. in, withD. with, in( ) 10. The movie is , and we are really very when we see it.A. relaxing, relaxingB. relaxed, relaxedC. relaxing, relaxedD. relaxed, relaxing( )11. There are many animals in the zoo. But some animal are scary.A. kinds of, kind ofB. kinds of, kinds ofC. kind of, kind ofD. kind of, kinds of( )12. There are a lot of in our school.A. woman teachersB. women teachersC. woman teacherD. women teacher( ) 13. –Is the woman your teacher?-- Yes, she teaches Chinese.A. usB. ourC. oursD. we( ) 14. – Excuse me. Is there a post office near here?-- .A. Yes, it is.B. No, this isn’t.C. Yes, there is.D. No, there aren’t.( ) 15. – Have a nice weekend.-- .A. That’s OK.B. No problem.C. You’re welcome.D. Thank you.文档内容到此结束,欢迎大家下载、修改、丰富并分享给更多有需要的人。
七下Unit 11专项训练—完成句子一、根据汉语意思完成句子,每空一词。
1. 昨天我们参观了科学博物馆。
Yesterday we _________ the science _________.2. 上周六他们去了一家消防站。
They ________ to a ________ ________ last Saturday.3. 简和她哥哥上周末爬山了。
Jane and her brother ________a ________ last weekend.4. 她昨天在格林先生家看见了一些油画。
She ________ some ________ in Mr Green's house yesterday.5. 刚才你妹妹画了一张漂亮的画。
Your sister ______a beautiful ______ just now.6. 迈克上周末在农场骑了马。
Mike ________ ________ ________ on the farm last weekend.7. 卡罗尔上周学到了很多关于农耕的事。
Carol learned ________ ________ ________ about farming last week.8. 汤姆昨天在农场帮助父亲给奶牛挤奶。
Tom helped his father ________ ________ ______on the farm yesterday.9. 去年暑假我和叔叔每天一起去钓鱼。
Last summer vacation I ________ ________ with my uncle every day. 10. 杰克昨天在公园里散步了。
Jack ________ ________ ________ ________ in the park yesterday.11. 我的叔叔养了相当多的鸡鸭。
My uncle kept __________________ chickens and ducks. (quite)12. 我们参观了一家科学博物馆, 所有人对此感兴趣。
Unit 1 周末练习一、背默以下词组。
1.would like to do sth 想要做某事2.live next to a restaurant 居住在饭店隔壁3.the biggest one 最大的那个4.the capital of ...的首都5.enjoy a cup of tea 品茶6.have fun= have a good time=enjoy oneself 玩的愉快7.in the centre of 在...的中心8.on the seventh floor 在第七层9.have a nice living room 有一个漂亮的起居室10.share sth with sb 和某人分享某物11.listen to music in bed 在床上听音乐12.like the balcony best 最喜欢阳台13.look out at the beach and the sea 向外看着海滩和大海14.look out of the window 朝窗户外面看15.my fifteenth birthday 我的第十五个生日16.15 feet tall 15英尺高17.square metres 平方米18.over= more than 超过,多于19.hundreds of 几百thousands of 几千millions of 几百万二、背默以下句子。
1.Would you like to live in a palace? 你想住在皇宫吗?2.Which country is the Eiffel Tower from? 埃菲尔铁塔是来自哪个国家?3.I live in a town 15miles from London. 我住在离伦敦15英里的一个小镇上。
4.My favourite room is the kitchen. 我最喜欢的房间是厨房。
Unit 3 Language in use一.选择题(共7小题)1.Last weekend,Tom for a walk with his father.()A.go B.goes C.is going D.went2.I am going to move _______ London next month.()A.in B.at C.to D.from3.The old woman ______ at the age of eighty.()A.death B.dead C.die D.died4.My daughter was very ______ that kind of book last year.()A.interesting in B.interested inC.interest to D.in interested at5.﹣﹣﹣What did Shakespeare decide to be?﹣﹣﹣He decided to be an _______.()A.act B.actor C.action D.active6.Deng Yaping her first match when she was only 13 years old.()A.win B.wins C.won D.is winning7.In 1950 people didn't use cell phone ________ computer.()A.and B.but C.or D.with二.填空题(共5小题)8.It was rainy yesterday.(对划线部分提问)was the yesterday?9.They did their homework at school yesterday afternoon.(改为否定句)They their homework at school yesterday afternoon.10.The boys enjoy(watch)football matches.11.The twelfth month of a year is D.12.Both of my best friends were born in(十月).三.完形填空(共1小题)13.Linda Evans was a famous writer of children's stories.She lived in a fine old house in Devon.Usually she worked at home,in her quiet study(书房).Long before(不久)her booksbecame popular,she had tried to teach(1)how to use a computer,and soon she typed (打字)all her stories on her computer.But sometimes she had to(2)the house to get some books from the library or have a meeting.She didn't like being(3),because she was very(4)about burglars(盗贼).So she was very(5).Just before leaving,she always put a full cup of coffee on the kitchen table,and left the radio (6),to make a burglar think there was(7)at home.One day she came back after a day out,and(8)at once(马上)that someone had been there.There was only a little coffee(9)in the cup,and the radio was off.But when she looked at her computer,she saw it was(10),and someone had typed in a new story.She had no(11)who had got in,or how,because none of the doors or windows were(12).But she sat down to read the story,and it was a very good one."I'll use it in my next book!" she said(13).The next month she had to go to London.She put a pot(壶)of coffee and a plate of sandwiches on the table.When she returned,the coffee and sandwiches had(14).She ran to the computer.This time there was only a(15)on the screen."IT'S NOT YOUR STORY.IT'S MINE!" it said.1.A.the students B.herself C.her parents D.her children 2.A.mend B.move C.leave D.buy 3.A.alone B.noisy C.away D.back 4.A.tired B.worried C.pleased D.interested 5.A.careful B.safe C.afraid D.polite 6.A.listening B.singing C.speaking D.playing 7.A.nobody B.someone C.anyone D.everyone 8.A.knew B.left C.asked D.answered 9.A.flown B.drunk C.made D.left10.A.on B.off C.in D.out 11.A.luck B.way C.idea D.excuse 12.A.new B.modern C.closed D.open13.A.carefully B.happily C.slowly D.badly14.A.brought B.used C.gone D.eaten15.A.message B.paper C.story D.line四.阅读理解(共1小题)14.Sarah left her home after she had a quarrel(吵架)with her mum.She walked for a long time.Then she saw a noodle shop.She was hungry.But she didn't have money.There was an old woman in the shop.She asked Sarah,"Girl,do you want to have a bowl of noodles?""But I don't have any money," said Sarah."Don't worry." Soon,the old woman brought her a bowl of noodles.Sarah ate for a while and started to cry."What's the matter?" the old woman asked."I'm so moved! We don't know each other and you cook noodles for me!But my own mother,after a quarrel,let me get out of the house!" Sarah answered."Girl,how can you think that way?I just cooked you a bowl of noodles.Your mother cooks for you every day.Why don't you thank her?" said the old woman.Sarah was surprised and went home quickly.Her mum was waiting for her for dinner.She was so happy to see her daughter.Sarah cried again.1.Sarah left her home because .A.she wanted to have a bowl of noodlesB.she wanted to have a walkC.she quarrelled with her motherD.her mother didn't want to see her at home2.Sarah cried in the noodle shop because .A.she didn't like noodlesB.her mother didn't cook her noodlesC.she was too happyD.the old woman didn't know Sarah,but she cooked noodles for her3.In fact,Sarah's mother .A.isn't a bad motherB.is a strict motherC.doesn't love her at allD.cooks noodles for her every day4.What does the underlined word "moved" mean?A.高兴的B.悲伤的C.感动的D.疯狂的5.What's the best title(标题)of this passage?A.A Girl and an Old WomanB.A Bowl of NoodlesC.A Bad MotherD.A Quarrel五.书面表达(共1小题)15.对小学生活大家都有着难忘的回忆,请以"My Primary School Friend"为题,介绍你的小学朋友.My Primary School FriendUnit 3 Language in use参考答案与试题解析一.选择题(共7小题)1.Last weekend,Tom for a walk with his father.()A.go B.goes C.is going D.went【分析】上周末,汤姆和父亲去散步.【解答】答案:D.考查一般过去时.句意"上周末,汤姆和父亲去散步.".A原形.B 第三人称单数.C现在进行时态.D过去式.根据Last weekend上周末.可知,是一般过去时态,谓语动词用过去式went去.答案是D.【点评】考查一般过去时态,表示事情发生在过去,谓语动词通常用过去式,注意动词过去式变法,结合语境完成试题.2.I am going to move _______ London next month.()A.in B.at C.to D.from【分析】略【解答】略【点评】略3.The old woman ______ at the age of eighty.()A.death B.dead C.die D.died【分析】略【解答】略【点评】略4.My daughter was very ______ that kind of book last year.()A.interesting in B.interested inC.interest to D.in interested at【分析】略【解答】略【点评】略5.﹣﹣﹣What did Shakespeare decide to be?﹣﹣﹣He decided to be an _______.()A.act B.actor C.action D.active【分析】略【解答】略【点评】略6.Deng Yaping her first match when she was only 13 years old.()A.win B.wins C.won D.is winning【分析】当她只有13岁的时候,邓亚平赢得了第一场比赛.【解答】答案:C.考查一般过去时.句意"当她只有13岁的时候,邓亚平赢得了第一场比赛.".A动词原形.B第三人称单数.C过去式.D现在进行时.根据was过去式.可知,应该是一般过去时态,谓语动词用过去式won赢.故选:C。
十五周末练习题
表格法表示变量之间关系,其优点是:对于表中的自变量的每一个值,可以不通过计算,直接把因变量的值找到. 不足之处是:表格只能列出部分自变量与因变量对应的值,难以反映变量之间变化的全貌。
关系式表示变量之间关系,其优点是:比较准确,有了关系式,可以由自变量的一个值,求出相应的因变量的值,反过来知道因变量的一个值,也可以求出相应的自变量的值。
其不足之处是:关系式反应的两个变量之间的关系比较抽象,只有借助列出部分自变量与因变量对应值表才能看出变化的特点。
图象表示变量之间关系,其优点是:能形象直观反映事物变化的全过程、变化趋势和某些性质. 其不足之处是:表示出来的图象是近似的、局部的,观察由图象确定的因变量的值,往往不够准确。
一、填空题:
1.一个四棱柱的底面是一个边长为10cm 的正方形,它的高变化时,棱柱的体积也随之变化. (1)在这个变化过程中,自变量是 ,因变量是 ;
(2)若棱柱的高度为h(cm),则棱柱的体积V (cm 3
)与h 的关系式为 ;
(3)当高由1cm 变化到8cm 时,棱柱的体积由 cm 3变化到 cm 3。
(1)卖出的香蕉数量用x (kg )表示,售价用y (元)表示,则y 与x 的关系式为 ; (2)当卖出香蕉数量x=12千克时,y= 元。
如果卖出香蕉数量x 在80千克到100千克之间,那么售价在 元到 元之间变化。
3.长方形的周长为24cm ,其中一边为x (其中0 x ),面积为y 2
cm ,则这样的长方形中y 与
x 的关系式为
4. A 、B 两地相距500千米,一辆汽车以50千米/时的速度由A 地驶向B 地.汽车距B 地的距离y(千米)与行驶时间t(之间)的关系式为 .在这个变化过程中,自变量是 ,因变量是 .
5.某人用新充值的50元IC 卡打长途电话,按通话时间3分钟内收2.4元,超过1分钟加收一元钱的方式缴纳话费.若通话时间为t 分钟(t 大于等于3分钟),那么电话费用w 可以表示为 ;当通话时间达到10分钟时,卡中所剩话费从50元减少到 元.
二、解答题
1.一名同学在用弹簧做实验,在弹簧上挂不同质量的物体后,弹簧的长度就会发生变化,
(2)弹簧不挂物体时的长度是多少?如果用x 表示弹性限度内物体的质量,用y 表示弹簧的长度,那么随着x 的变化,y 的变化趋势如何?
(3)如果此时弹簧最大挂重量为15千克,你能预测当挂重为10千克时,弹簧的长度是多少?
2.如图:将边长为20cm 的正方形纸片的四个角截去相同的小正方形,然后将截好的材料围成一个无盖的长方体。
(1)这个情境反映了哪两个变量 之间的关系?其中自变量是什么? 因变量是什么?
(2)在以上问题中,若设截去的 小正方形的边长是xcm ,围成的
无盖长方体的体积是ycm 3
,则y 与x 之间的关系式是__________________;
(3)若小正方形的边长是5cm ,那么长方体的体积是多少cm 3?当x=2.5cm 体积是多少cm 3
(4)根据以上关系式填右表:
(5)当x 在什么范围变化时,y 随x 的增大而增大,当x 在什么范围变化时,y 随x 的增大而减小?你又是根据哪种表示法得到的?
(6)请你估计x 取何值时,制成的无盖长方体的体积最大? 3.小红与小兰从学校出发到距学校5千米的书店买书,下图反应了他们两人离开学校的路程与时间的关系。
根据图形尝试解决你们提出的问题。
(1)小红与小兰谁先出发?谁先达到? (2)描述小兰离学校的路程与时间的变化关系。
(3)小兰前20分钟的速度和最后10分钟的速度是多少?怎样从图像上直观地反映速
度的大小?
(4)小红与小兰从学校到书店的平均速度
各是多少?
4.一辆汽车以每小时50千米的速度行
驶了t 小时,行驶的路程为s 千米. (1)这个情境中,有哪些变量?其中自变量是什么?因变量是什么?
(2)你能用哪种方式表示路程与时间之间的关系?具体做一做。
(3)该汽车行驶2.5小时的路程是多少千米?
(4)一段公路全长350千米,这辆汽车行驶完全程需要多少小时?
0 10 20 30 40 50 60 t/分
钟
/时
(2)如果果子经过2秒落到地上,那么请估计这果子开始落下时离地面的高度是多少米? (3)请你列出果子落下的高度h (米)与时间t (秒)之间的关系式。
6.2013年6月份某一天沈阳的气温随时间变化的情况如图所示,回答下列问题:
(1)这天的最高气温约是 ℃;
(2)这天一共有 个小时的气温在24℃以上; (3)这天在 范围内温度在上升;
这天在 范围内温度在下降;
(4)请你预测一下,次日凌晨1点的气温大约多少度。
7.某种油箱容量为60升的汽车,加满汽油后,
汽车行驶时油箱的油量Q (升)随汽车行驶时间t (时)变化的关系式如下:Q =60-6t
(2)汽车行驶5小时后,油箱中油量是 升
(3)若汽车行驶过程中,油箱的油量为12升,则汽车行驶了 小时 (4)贮满60升汽油的汽车,最多行驶 小时
(5)下面哪个图像能够反映变量Q 与t 的关系的是( )
(1)小颖到达离家最远的地方是什么时间?离家多
远?
(2)她何时开始第一次休息?休息了多长时间? (3)她骑车速度最快是在什么时候?车速多少? (4)玲玲全程的平均速度是多少?
时间 3 6 9 12 15 18 21 24 Q (A ) t (B ) Q t (C )
9、如图,它表示甲乙两人从同一个地点出发后的情况。
到十点时,甲大约走了13千米。
根据图象回答: (1)甲是几点钟出发?
(2)乙是几点钟出发,到十点时,他大约走了多少米?
(3)到十点为止,哪个人的速度快? (4)两人最终在几点钟相遇?
(5)你能利用图象中得到的信息,编个故事吗?
11.下表中的数据是根据某地区入学儿童人数编制的:
(1)上表反映了哪两个变量之间的关系?哪个是自变量?哪个是因变量? (2)随着自变量的变化,因变量变化的趋势是什么? (3)你认为入学儿童的人数会变成零吗
?
12.分析右图所反映的变量之间的关系, 想象一个适合它的实际情境。
时间
路程(千米)。